List of top Chemistry Questions asked in JEE Advanced

The acidic hydrolysis of ether $(X)$ shown below is fastest when

Assuming $2s-2p$ mixing is not operative, the paramagnetic species among the following is

Isomers of hexane, based on their branching, can be divided into three distinct classes as shown in the figure. The correct order of their boiling point is

For the reaction: $I ^{-}+ ClO _{3}^{-}+ H _{2} SO _{4} \longrightarrow Cl ^{-}+ HSO _{4}^{-}+ I _{2}$ The correct statement(s) in the balanced equation is/are:

Upon heating with $Cu_2S.$ the reagent(s) that give copper metal is/are

Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is (are)

The correct statement(s) about $O_3$ is/are

The $ K_{sp} \, of \, Ag_2CrO_4 $ is $ 1.1 \times 10^{ - 12 } $ at 298 K. The solubility (in mol/L) of $Ag_2 CrO_4 $ in $ a 0.1 M \, AgNO_3 $ solution is

How many litres of water must be added to 1 L of an aqueous solution of HCL with a pH of 1 to create an aqueous solution with pH of 2?

The thermal dissociation of equilibrium of $CaCO_3 $ (s) is studied under different conditions $ CaCO_3 \, ( g) \rightleftharpoons CaCO ( g ) + CO_2 ( g)$ For this equilibrium, the correct statement(s) is/are

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at $25^\circ $C. For this process, the correct statement is

Consider the following complex ions, $P, Q$ and $R$. $P=[FeF_6]^{3-},Q=[V(H_2O)_6]^{2+} and \, R=[Fe(H_2O)_6]^{2+} $ The correct order of the complex ions, according to their spin-only magnetic moment values (in $B.M.$) is

The compound that does not liberate $CO_2$, on treatment with aqueous sodium bicarbonate solution, is

The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, are due to

The carbon-based reduction method is not used for the extraction of

Upon treatment with ammoniacal $H_2 S$, the metal ion that precipitates as a sulphide is

Among $P, Q, R$ and $S$, the aromatic compounds(s) is/are

In allene $(C_3H_4)$ the type(s) of hybridisation of the carbon atoms, is (are)

For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100g of water, the elevation in boiling point at 1 atm pressure is 2$^{\circ}$C. Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (take $K_b = 0.76 K kg mol^{-1}).$

Three very large plates of same area are kept parallel and close to each other. They are considered as ideal black surfaces and have very high thermal conductivity. The first and third plates are maintained at temperatures 2T and 3T respectively. The temperature of the middle (i.e. second) plate under steady state condition is

The reaction of white phosphorus with aqueous $NaOH$ gives phosphine along with another phosphorus containing compound. The reaction type, the oxidation states of phosphorus in phosphine and the other product respectively are

With respect to graphite and diamond, which of the statement(s) given below is/are correct?

The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [$a_0$ is Bohr radius]

Identify the binary mixture(s) that can be separated into individual compounds, by differential extraction, as shown in the given scheme.

For one mole of a van der Waals' gas when $b = 0$ and $T = 300\, K$. the $pV\, vs \,1/V$ plot is shown below. The value of the van der Waals' constant a (atm $L\, mol^{-2}$)